GMAT Prep exponents question

Hey all, Been a lurker here for a while..have the GMAT tomorrow so am in hardcore study mode! Was doing GMATPrep and came across a simple question that threw me for a curve ball: 2^((4-1)^2) / 2^(3-2) A) 2^8 B) 2^7 C) 2^6 D) 2^5 E) 2^4 Writing it out makes it a lot clearer to understand. To tackle t...